*Implement SPELL_ATTR_EX4_FIXED_DAMAGE

--HG--
branch : trunk

src/game/SharedDefines.h

@@ -359,7 +359,7 @@ enum SpellCategory
 #define SPELL_ATTR_EX4_UNK5                       0x00000020            // 5
 #define SPELL_ATTR_EX4_NOT_STEALABLE              0x00000040            // 6 although such auras might be dispellable, they cannot be stolen
 #define SPELL_ATTR_EX4_UNK7                       0x00000080            // 7
-#define SPELL_ATTR_EX4_UNK8                       0x00000100            // 8
+#define SPELL_ATTR_EX4_FIXED_DAMAGE               0x00000100            // 8 decimate, share damage?
 #define SPELL_ATTR_EX4_UNK9                       0x00000200            // 9
 #define SPELL_ATTR_EX4_SPELL_VS_EXTEND_COST       0x00000400            // 10 Rogue Shiv have this flag
 #define SPELL_ATTR_EX4_UNK11                      0x00000800            // 11

src/game/Unit.cpp

@@ -1282,6 +1282,9 @@ void Unit::CalculateSpellDamageTaken(SpellNonMeleeDamage *damageInfo, int32 dama
     if (damage < 0)
         return;
 
+    if(spellInfo->AttributesEx4 & SPELL_ATTR_EX4_FIXED_DAMAGE)
+        return;
+
     Unit *pVictim = damageInfo->target;
     if(!pVictim || !pVictim->isAlive())
         return;